First, here are most of the phases in a moon phase cycle.

1. Waxing Cresent
1. Waxing Cresent
2. First Quarter
2. First Quarter
3. Waxing Gibbous
3. Waxing Gibbous

4. Full Moon
4. Full Moon
5. Waning Gibbous
5. Waning Gibbous
6. Third Quarter
6. Third Quarter

7. Waning Cresent
7. Waning Cresent

Using his newly improved telescope, Galileo Galilei became the first person to ever discover craters on the moon. This disproved Aristotle's theory that the moon is a perfect sphere. Here are some photos of craters on the moon.
Moon_craters_#1.GIF
A shot of the Moon's craters from a distance
More moon craters
More moon craters

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